Grid-Tied Inverter

User Manual

Models: 3000 Watt

Included

1 x 3Kw GRID TIED Inverter

2 x MC4 Connector Sets

4 x White 2-Way Expansion Plugs

4 x Co-Axial Screws

4 x Flat Washers

2 x Stainless Steel Bolts M5

2 x Stainless Steel Bolts M6

1 x Installation Bracket

1 x Installation Manual

1 x Sealing Plug Sets

1 x AC Power Connector

Installation

Dimensions

Height 360 mm

Width 500 mm

Depth 194 mm

Weight 18.4 kg

Mounting Position

• Choose a surface that can support the inverter’s weight (ex. Concrete or steel surface.)

• Installation must be easily accessible for installation, connection of electrics and

maintenance.

• For optimal heat dissipation and airflow the inverter should be mounted to a vertical

surface with the power terminals on the bottom.

• When multiple inverters are connected in parallel the ambient temperature may be

higher than desired. To ensure normal operation increase clearances between

inverters and/or substitute an external cold air supply.

• Do not install the inverter in a sealed enclosure to insure proper ventilation.

Mounting Bracket

• When using the mounting bracket it is important to select a vertical surface that will be

able to take the weight of the inverter.

• After a suitable position has been selected drill 8mm wide 40-45mm deep holes using

the mounting plate as a template.

• After the holes have been drilled ,place expansion rubber stoppers into the holes

• Now place the mounting bracket onto the surface matching up the holes in the bracket

to the stoppers.

• Use the 7 mounting screws to securely fasten the mounting bracket to the surface.

• Insert the protruding plaits on the mounting bracket into the rectangular notches on the

back of the inverter.

• Slowly pull the inverter vertically downwards until the inverter’s bottom plate touches

the mounting bracket’s bottom.

• Fix the inverter to the mounting bracket be screwing it to the bracket.

System connection diagram

A: Solar panel

B: DC circuit breaker

C: Grid tie inverter

D: AC circuit breaker

E: Electricity meter

F: Power grid

AC Connection Terminals

DC Connection Specifications

Model Max input current Max input voltage

1500 9 A 450 V

2000 10 A 500 V

2500 13 A 500 V

3000 13 A 500 V

3600 18 A 550 V

4000 19 A 550 V

4600 18 A 550 V

5000 18 A 550 V

Operation

Start-up checks

• Check that the solar panel’s operation specifications are within the inverters safe

operation range.

• Check that the inverter’s operation specifications are within the local grid

regulations.

• Check that the inverter is securely mounted.

• Check that the DC terminals and solar panels are correctly connected.

• Check that the AC terminal and grid connections are correctly connected.

• Check that the AC and DC circuit breakers are correctly connected.

• Check that the inverter cover is securely tightened and sealed.

Display

The state of the inverter is displayed on the first line of the display. The Microcare Grid tie

inverter operates in the following four states:

• Standby: The inverter is standing by to be initialised.

• Waiting: The inverter is waiting for the grid to be connected.

• Normal operation: The inverter is operating normally.

• Fault state: The inverter has detected a fault.

The button on the front of the inverter can be used to scroll through the info displayed on the

second line. Alternately it will automatically scroll through the info after no input from the user

for about 20 seconds.

Displayed on the second line

Displayed info Details

User: xxxx Displays the user type for the inverter

Spec: xxxx Displays the spec the inverter is running at (Default VDE)

Model: x.xKw Displays the model number of the inverter (1500, 3000, 5000)

SW Version: XX.XX Displays the current software version installed (5.06)

Etotal: XXXKwh Displays the total amount of power the inverter has produced

Etoday: XX.XKwh Displays the amount of power the inverter has produced today

Ttoday: XXhxxmin Displays the time the inverter has been operating today

PV: xxxV BUS: xxxV PV: Displays the solar panel voltage

BUS: Displays the voltage on the MPPT BUS

AC: xxxV xx.xhz AC: Displays the voltage of the grid

Hz: Displays the frequency the grid is operating at.

SN: xxxxxxxxxxxxxxx SN: Displays the serial number of the inverter

Fault states

Displayed fault Details

Disconnect Grid The inverter is not connected to the grid.

Grid V Fault The grid voltage is out of range.

Grid F Fault The grid frequency is out of range

Low Isolation The input isolation is too low.

High PV Voltage PV input voltage to high

High Ground 1 The ground fault circuit interrupter has tripped.

High Temperature The inverter is in thermal shutdown and will resume when cool down.

EEPROM Damaged The inverters memory has been damage and the long may be lost.

Please Initiate System has not been initiated and need programming

GFCI Damaged The inverters ground fault circuit interrupter is damaged.

Sensor Damaged The inverters output ac sensor is damaged

SCI Damaged The inverters processors are not communicating correctly

Not Consistent The inverters processors data are conflicting.

High DC INJ The output of the DC MPPT is too high.

Relay Damaged The inverters relay is faulty.

High Bus Voltage The DC Bus voltage is too high.

Auto test failed The inverter has failed its auto test and has an internal fault.

2.5V Ref fault There is a problem with the 2.5v Reference on the processor board.

Specifications 3000 Watt

Input data

Max.DC power 3160W

Max.DC voltage 500V

Recommended system voltage 383V

System start-up voltage 150V

PV voltage range MPPT 110V-480V

Full load voltage range MPPT 250V-400V

Max.input current 13A

DC voltage ripple < 5%

Output data

Nominal AC output 2800W

Max.AC power 3000W

Max.output current 16A

THD of AC current < 3%

Norminal grid voltage 220V/230V/240V

Norminal grid frequency 50Hz

Power factor（cos φ） 0.99

Number of feed-in phases single-phase

Efficiency

Max.efficiency 96.60%

MPPT efficiency 99.50%

Device protection

Reverse polarity protection short-circuit diode

DC switch Yes

Short-circuit proof Yes

Ground fault monitoring Yes

Grid monitoring Yes

Over-voltage protection Yes

Over-current protection Yes

Active anti-islanding Yes

Ground fault current detection Yes

General data

Dimensions (height x width x depth) 360/500/194

Weight 18.4kg

Noise level <30 dB

Power consumption night < 0.2W

Power consumption standby 5W

Cooling free convection

Features

On/off mode Auto

Display LCD/LED

Accessory interfaces RS485/RS232

J&J ELECTRONICS LIMITED CARRY-IN WARRANTY

GRID TIED INVERTERS

J&J Electronics warrants its Grid Tied Inverters against defects in workmanship and materials,

fair wear and tear accepted, for a period of 7 (seven) years from the date of delivery/collection

for all equipment and is based on a carry-in basis. Where the installation of the product makes it impractical to carry-in to our workshops, J&J Electronics reserves the right to charge

for travel time and kilometres travelled to and from the site where the product is installed.

During this warranty period, J&J Electronics will, at its own discretion, repair or replace the defective product free of charge. This warranty will be considered void if the unit has suffered

any physical damage or alteration, either internally or externally, and does not cover damages

arising from improper use such as, but not exclusive to:

• Inadequate or incorrect connection of the product and/or of its accessories.

• Mechanical shock or deformation.

• Contact with liquid or oxidation by condensation.

• Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation.)

• Breakage or damage due to lightning, surges, spikes or other electrical events.

• Connection terminals and screws destroyed or other damage such as overheating due to insufficient tightening of terminals.

• When considering any electronic breakage except due to lightning, reverse polarity, over-voltage, etc. the state of the internal control circuitry determines the warranty.

This warranty will not apply where the product has been misused, neglected, improperly

installed, or repaired by anyone else than J&J Electronics or one of its authorised Qualified

Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified. Repair or replacement are our sole remedies and J&J Electronics shall not be liable

for damages, whether direct, incidental, special, or consequential, even caused by negligence

or fault. J&J Electronics owns all parts removed from repaired products. J&J Electronics uses

new or re-conditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If J&J Electronics repairs or replaces a part of a product,

its warranty term is not extended. Removal of serial nos. may void the warranty.

All remedies and the measure for damages are limited to the above. J&J Electronics shall in no event be liable for consequential, incidental, contingent or special damages, even if having

been advised of the probability of such damages. Any and all other warranties expressed or

implied arising by law, course of dealing, course of performance, usage of trade or otherwise,

including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of 7 (seven) years from the date of purchase.

Life Support Policy:

As a general policy, J&J Electronics does not recommend the use of any of its products in life support applications where failure or malfunction of the J&J Electronics product can be

reasonably expected to cause failure of the life support device or to significantly affect its

safety or effectiveness.

J&J Electronics does not recommend the use of any of its products in direct patient care. J&J

Electronics will not knowingly sell its products for use in such applications unless it receives in

writing assurances satisfactory to J&J Electronics that the risks of injury or damage have been

minimised, the customer assumes all such risks, and the Liability of J&J Electronics is adequately protected under the circumstances.

Caution:

Our products are sensitive. While all care is taken by us to dispatch goods with adequate

packaging, J&J Electronics is not responsible for any damaged caused to products after they

have left our premises. Semi-sealed batteries have to be transported upright and must not be

put on their side. Please ensure that your transport company or delivery team is aware of the sensitivity of the products they are collecting.

Goods return policy:

The following terms apply to returns of items purchased from J&J Electronics, and we require

the following information:

1. Details of the item(s) you would like to return. 2. Our invoice number.

3. The reason for the return.

4. J&J Electronics must be notified within 7 days of your intention to return the goods

which were purchased. 5. All items returned will be inspected prior to refund. If our technicians are not

immediately available, the goods will have to be left with us until such time as a

technician is available to check the items.

6. Proof of purchase is required for all returns. 7. The price paid by the customer is the price on which the refund is based.

8. Items purchased can be returned for a refund, replacement or exchange, provided

proof of purchase is provided and subject to all other conditions as set down here.

9. All returns may be subject to an administration and handling fee of 10% of purchase price plus VAT.

10. Returns are based on a carry-in basis.

11. Returns will be refused in the following circumstances:

a. Where an item has been tampered with, altered or damaged in any way, or b. Where a return is deemed unreasonable, this will be referred to management.

Severability:

If a part of the terms and conditions set out above is held invalid, void, or unenforceable due

to any particular national or international legislation, it shall not affect other parts of the

terms and conditions remaining. ________________________________________________________________________